Objective To analyze the occupational health cognition of liquid propellant workers and provide a scientific basis for targeted health education.

Methods A total of 178 workers engaged in propellant work in a department were surveyed with a self-made questionnaire to investigate their mastery of propellant-related occupational health knowledge.Multivariate linear regression was used to analyze the influencing factors of occupational health cognition.

Results A total of 178 questionnaires were distributed, and 178 were effectively recovered, with an effective recovery rate of 100%. The survey objects were all male, with an average age of(24.1 ± 5.3) years. 132 workers(74.2%) passed the occupational health knowledge test, with an average score of(78.90 ± 11.21) points. The scores were low for the knowledge points of "physical and chemical properties of propellant" and "propellant toxicity and toxicology." The multivariate linear regression analysis showed that compared to these with junior college and below education, individuals with postgraduate and above education had higher score increased by 2.901 points(P < 0.05); compared to workers with less than 5 years of working experience, the workers with 5-10 years of working experience had higher score increased by 3.462 points, and for the worker with more than 10 years increased by 20.308 points(P < 0.05); compared with the workers without participation in occupational training, the workers participating in training 1-2 times per year had higher score increased by 8.845 points, and for the workers participating in training more than 3 times per year increased by 7.568 points(P < 0.05). The top three ways for workers to acquire occupational health knowledge were video media(38.0%, 68 workers), lecture teaching(27.2%, 48 workers), and printed media(19.5%, 35 workers).

Conclusions The propellant workers had a good mastery of propellant-related occupational health knowledge. However, attention should be paid to the key points of propellant toxicology and medical treatment. To organize the occupational health training, the worker's characteristics, such as educational level, working age, and training experience, should be considered, and easily accepted methods such as video media should be selected.